Police have made a fresh appeal for information about the last known movements of murder victim Glenn Quinn.
The 47-year-old from Carrickfergus was found dead in his ground floor flat at Ashleigh Park in the Woodburn area of the Co Antrim town a week ago.
Following a post-mortem examination, officers launched a murder enquiry, saying Mr Quinn had suffered a blunt force trauma that they believed resulted in his death.
Detective Chief Inspector Darren McCartney said: “The investigation is progressing and my team are continuing to make enquiries and look at local CCTV footage.
“I am keen to establish Glenn’s last known whereabouts.
“I know that he visited shops on the Woodburn Road at around 2pm on Thursday 2 January. Due to his limited mobility, he would have traveled there in his silver BMW car, registration YEZ1590. Did you see Glenn in his car after this time? I would also like to hear from anyone who saw or spoke to Glenn in the days before his murder.”
Police said Mr Quinn was “well-known throughout Carrickfergus” and said he “had no known enemies and no reason that we are aware of for anyone to cause him harm”.
They went on: “We know that Glenn was previously assaulted outside his home on 29 December and while he wasn’t badly injured, he was left frightened by this attack.
“We are working to establish if there is any link between that assault and the attack on Glenn a few days later when he sustained blunt force trauma that resulted in his death.
“I would like to hear from anyone who had been in contact with Glenn since Christmas Day and to whom he had revealed any concerns or who might be able to shed light on the motive for Glenn’s murder or those responsible for it.
“If you were in Ashleigh Park on Friday 3 January, from midday until 10pm or witnessed the attack on Glenn on 29 December we need to speak to you, particularly if you witnessed anything or may have captured any footage on dash cam or mobile phone.
“This was a violent and unprovoked attack on a vulnerable member of your community who was not in the best of health.
"The appalling individuals, who preyed on defenceless Glenn in his own home need to be caught and put behind bars. It is clear that they do not represent the Carrickfergus community, everyone has the right to feel safe in their own home.
"Anyone with information should contact police on 101 or independent charity Crimestoppers on 0800 555 111 which is 100% anonymous.”